On 11 Dec 2015 4:20 pm, "Eli Zaretskii" <eliz@gnu.org> wrote:
> >
> > Honestly, I'd love to overhaul isearch. But I couldn't do it
> > backwards-compatibly.
>
> That's what master is for.

I don't mind breaking things on master.
The point is that Isearch is probably one of the most used emacs features.
I expect there are lots of packages out there using its api. I'm not sure
overhauling it would be worth the pain it would cause to everyone who's
maintaining/using those packages.